EP 1210991 A4 20050622 - TAPERED BODY FORMING METHOD AND ROLLING DEVICE
Title (en)
TAPERED BODY FORMING METHOD AND ROLLING DEVICE
Title (de)
VERFAHREN ZUM FORMEN KONISCHER KÖRPER UND WALZVORRICHTUNG
Title (fr)
PROCEDE DE FORMAGE DE CORPS CONIQUE ET DISPOSITIF DE LAMINAGE
Publication
Application
Priority
- JP 0002613 W 20000421
- JP 11543699 A 19990422
Abstract (en)
[origin: EP1210991A1] A rolling device (11) capable of forming and opening a clearance (33) for rolling, wherein a material (35a) having a cross-section diameter varying in axial direction is formed, and a tapered finished product (35b) is formed of the material (35a) by die forging, whereby a reduction ratio of the cross-sectional area of the material (35a) formed by die forging is less than that obtained by forming a material havinga cross-section diameter uniform in axial direction by die forging only and, in addition, the finished product (35b) can be formed in a short time and thus a tapered body excellent in characteristics and quality can be formed at a low cost. <IMAGE>
IPC 1-7
IPC 8 full level
B21B 1/18 (2006.01); B21B 13/10 (2006.01); B21B 13/12 (2006.01); B21B 31/20 (2006.01); B21B 37/24 (2006.01); B21C 3/06 (2006.01); B21C 3/08 (2006.01); B21C 37/18 (2006.01); B21J 5/02 (2006.01); B21J 5/06 (2006.01); B21B 1/02 (2006.01); B21B 1/16 (2006.01); B21B 15/00 (2006.01); B21B 31/32 (2006.01); B21B 37/26 (2006.01)
CPC (source: EP)
B21B 13/103 (2013.01); B21B 37/24 (2013.01); B21C 3/06 (2013.01); B21C 3/08 (2013.01); B21C 37/18 (2013.01); B21B 1/024 (2013.01); B21B 1/16 (2013.01); B21B 1/18 (2013.01); B21B 15/0035 (2013.01); B21B 31/32 (2013.01); B21B 37/26 (2013.01); B21B 2013/003 (2013.01)
Citation (search report)
- [X] US 4283930 A 19810818 - HASEGAWA YOSHIMICHI, et al
- [X] US 562825 A 18960630
- [A] DE 2659471 A1 19780713 - PELTZER & EHLERS
- [A] KOPP R ET AL: "BELASTUNGSANGEPASSTE BLECHE DURCH FLEXIBLES WALZEN", VDI-Z, VDI VERLAG, DÜSSELDORF, DE, no. SPECIAL ISSUE, October 1998 (1998-10-01), pages 50 - 53, XP000827017, ISSN: 0042-1766
- See references of WO 0064604A1
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
EP 1210991 A1 20020605; EP 1210991 A4 20050622; JP 2003025006 A 20030128; WO 0064604 A1 20001102
DOCDB simple family (application)
EP 00917405 A 20000421; JP 0002613 W 20000421; JP 11543699 A 19990422